Enabled bicep in pipelines

[AlexanderSehr]

Change

• Update module tests to work with bicep
• Refactored several modules to work with tests
• Refactored pipeline actions to work with bicep
• Added bicep cli installation
• Added conditional template spec publishing workaround
• Fixed some bicep template issues
• Switched pipeline login to native action

  NOTE: This requires an update of the current credentials

Type of Change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update (Wiki)

Checklist

• I'm sure there are no other open Pull Requests for the same update/change
• My corresponding pipelines / checks run clean and green without any errors or warnings
• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (readme)
• I did format my code

[ahmadabdalla]

@MrMCake , do you think it's worth parameterizing the 'deploymentScope', making it more targeted. Thus, reducing lines 123-145?